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gr-qc2026
Perturbative aspects of analogue FLRW spacetime Jellium models
Matheus E. Pereira, Hermano Velten, Francisco B. Lustosa +1
We study electro-acoustic perturbative modes in homogeneous, isotropic and expanding -- dubbed as Friedmann-Lemaitre-Robertson-Walker (FLRW) -- Jellium models, thereby mimicking de…
gr-qc2025
Molecular analogue for scalar dynamics in an AII metric
Davi de Moura Esposti Moreira, Matheus Elias Pereira, Alexandre Grezzi de Miranda Schmidt
Tachyons are hypothetical particles that propagate faster than light, yet they have never been observed in nature or in the laboratory. In this work, we introduce the molec…